<?php
/**
 * description...
 * 
 * @author Administrator
 * @category  
 * @package DnCacheNull
 */
class DnCacheNull extends DnCache
{
	public function _get($key) {
		return false;
	}
	public function _set($key, $value, $expire = 0) {
		return false;
		
	}
	public function _delete($key) {
		return false;
	}
}